How to change on Xtream UI client port

[kartel]

hi

i change the panel port in ngnix 25500 but cannot change the client port 25461

does anyone know why i can't change i tried through putty and unsuccessfully

i can't sed -i 's/25461/NEWPORT/g' /home/xtreamcodes/iptv_xtream_codes/nginx/conf/nginx.conf ; /etc/init.d/xtreamcodes